<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title></title>
    <style>
        * {
            padding: 0;
            margin: 0;
        }
        .wrap {
            width: 300px;
            margin: 100px auto;
        }
        table {
            border-collapse: collapse;
            border-spacing: 0;
            border: 1px solid #c0c0c0;
        }
        th,td {
            border: 1px solid #d0d0d0;
            padding: 10px;
        }
        th {
            background-color: #09c;
            color: white;
        }
        td {
            font: 14px '微软雅黑';
        }
        tbody tr {
            background-color: #f0f0f0;
        }
        tbody tr:hover {
            cursor: pointer;
            background-color: #fafafa;
        }
    </style>
</head>
<body>
<div class="wrap">
    <table>
        <thead>
        <tr>
            <th>
                <input type="checkbox" id="j_cbAll"/>
            </th>
            <th>课程名称</th>
            <th>所属学院</th>
        </tr>
        </thead>
        <tbody id="j_tb">
        <tr>
            <td>
                <input type="checkbox"/>
            </td>
            <td>JavaScript</td>
            <td>前端与移动开发学院</td>
        </tr>
        <tr>
            <td>
                <input type="checkbox"/>
            </td>
            <td>css</td>
            <td>前端与移动开发学院</td>
        </tr>
        <tr>
            <td>
                <input type="checkbox"/>
            </td>
            <td>html</td>
            <td>前端与移动开发学院</td>
        </tr>
        <tr>
            <td>
                <input type="checkbox"/>
            </td>
            <td>jQuery</td>
            <td>前端与移动开发学院</td>
        </tr>
        </tbody>
    </table>
</div>
<script src="jquery-1.11.1.min.js"></script>
<script>
    $(function () {

        $('#j_cbAll').click(function () {
            $('#j_tb input:checkbox').prop('checked',$(this).prop('checked'))
        });

        $('#j_tb input:checkbox').click(function () {
            if($('#j_tb input:checkbox').length===$('#j_tb input:checked').length){
                $('#j_cbAll').prop('checked',true);
            }else{
                $('#j_cbAll').prop('checked',false);
            }
        });
    });
</script>
</body>
</html>